plugin: managers -> internal

5 files changed, 581 insertions, 0 deletions

diff --git a/plugin/src/Caelestia/Internal/CMakeLists.txt b/plugin/src/Caelestia/Internal/CMakeLists.txt
new file mode 100644
index 0000000..62aa516
--- /dev/null
+++ b/plugin/src/Caelestia/Internal/CMakeLists.txt
@@ -0,0 +1,10 @@
+qml_module(caelestia-internal
+    URI Caelestia.Internal
+    SOURCES
+        cachingimagemanager.hpp cachingimagemanager.cpp
+        circularindicatormanager.hpp circularindicatormanager.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::Quick
+        Qt::Concurrent
+)
diff --git a/plugin/src/Caelestia/Internal/cachingimagemanager.cpp b/plugin/src/Caelestia/Internal/cachingimagemanager.cpp
new file mode 100644
index 0000000..3394f89
--- /dev/null
+++ b/plugin/src/Caelestia/Internal/cachingimagemanager.cpp
@@ -0,0 +1,223 @@
+#include "cachingimagemanager.hpp"
+
+#include <QtQuick/qquickwindow.h>
+#include <qcryptographichash.h>
+#include <qdir.h>
+#include <qfileinfo.h>
+#include <qfuturewatcher.h>
+#include <qimagereader.h>
+#include <qpainter.h>
+#include <qtconcurrentrun.h>
+
+namespace caelestia {
+
+qreal CachingImageManager::effectiveScale() const {
+    if (m_item && m_item->window()) {
+        return m_item->window()->devicePixelRatio();
+    }
+
+    return 1.0;
+}
+
+QSize CachingImageManager::effectiveSize() const {
+    if (!m_item) {
+        return QSize();
+    }
+
+    const qreal scale = effectiveScale();
+    const QSize size = QSizeF(m_item->width() * scale, m_item->height() * scale).toSize();
+    m_item->setProperty("sourceSize", size);
+    return size;
+}
+
+QQuickItem* CachingImageManager::item() const {
+    return m_item;
+}
+
+void CachingImageManager::setItem(QQuickItem* item) {
+    if (m_item == item) {
+        return;
+    }
+
+    if (m_widthConn) {
+        disconnect(m_widthConn);
+    }
+    if (m_heightConn) {
+        disconnect(m_heightConn);
+    }
+
+    m_item = item;
+    emit itemChanged();
+
+    if (item) {
+        m_widthConn = connect(item, &QQuickItem::widthChanged, this, [this]() {
+            updateSource();
+        });
+        m_heightConn = connect(item, &QQuickItem::heightChanged, this, [this]() {
+            updateSource();
+        });
+        updateSource();
+    }
+}
+
+QUrl CachingImageManager::cacheDir() const {
+    return m_cacheDir;
+}
+
+void CachingImageManager::setCacheDir(const QUrl& cacheDir) {
+    if (m_cacheDir == cacheDir) {
+        return;
+    }
+
+    m_cacheDir = cacheDir;
+    if (!m_cacheDir.path().endsWith("/")) {
+        m_cacheDir.setPath(m_cacheDir.path() + "/");
+    }
+    emit cacheDirChanged();
+}
+
+QString CachingImageManager::path() const {
+    return m_path;
+}
+
+void CachingImageManager::setPath(const QString& path) {
+    if (m_path == path) {
+        return;
+    }
+
+    m_path = path;
+    emit pathChanged();
+
+    if (!path.isEmpty()) {
+        updateSource(path);
+    }
+}
+
+void CachingImageManager::updateSource() {
+    updateSource(m_path);
+}
+
+void CachingImageManager::updateSource(const QString& path) {
+    if (path.isEmpty() || path == m_shaPath) {
+        // Path is empty or already calculating sha for path
+        return;
+    }
+
+    m_shaPath = path;
+
+    const auto future = QtConcurrent::run(&CachingImageManager::sha256sum, path);
+
+    const auto watcher = new QFutureWatcher<QString>(this);
+
+    connect(watcher, &QFutureWatcher<QString>::finished, this, [watcher, path, this]() {
+        if (m_path != path) {
+            // Object is destroyed or path has changed, ignore
+            watcher->deleteLater();
+            return;
+        }
+
+        const QSize size = effectiveSize();
+
+        if (!m_item || !size.width() || !size.height()) {
+            watcher->deleteLater();
+            return;
+        }
+
+        const QString fillMode = m_item->property("fillMode").toString();
+        // clang-format off
+        const QString filename = QString("%1@%2x%3-%4.png")
+            .arg(watcher->result()).arg(size.width()).arg(size.height())
+            .arg(fillMode == "PreserveAspectCrop" ? "crop" : fillMode == "PreserveAspectFit" ? "fit" : "stretch");
+        // clang-format on
+
+        const QUrl cache = m_cacheDir.resolved(QUrl(filename));
+        if (m_cachePath == cache) {
+            watcher->deleteLater();
+            return;
+        }
+
+        m_cachePath = cache;
+        emit cachePathChanged();
+
+        if (!cache.isLocalFile()) {
+            qWarning() << "CachingImageManager::updateSource: cachePath" << cache << "is not a local file";
+            watcher->deleteLater();
+            return;
+        }
+
+        const QImageReader reader(cache.toLocalFile());
+        if (reader.canRead()) {
+            m_item->setProperty("source", cache);
+        } else {
+            m_item->setProperty("source", QUrl::fromLocalFile(path));
+            createCache(path, cache.toLocalFile(), fillMode, size);
+        }
+
+        // Clear current running sha if same
+        if (m_shaPath == path) {
+            m_shaPath = QString();
+        }
+
+        watcher->deleteLater();
+    });
+
+    watcher->setFuture(future);
+}
+
+QUrl CachingImageManager::cachePath() const {
+    return m_cachePath;
+}
+
+void CachingImageManager::createCache(
+    const QString& path, const QString& cache, const QString& fillMode, const QSize& size) const {
+    QThreadPool::globalInstance()->start([path, cache, fillMode, size] {
+        QImage image(path);
+
+        if (image.isNull()) {
+            qWarning() << "CachingImageManager::createCache: failed to read" << path;
+            return;
+        }
+
+        image.convertTo(QImage::Format_ARGB32);
+
+        if (fillMode == "PreserveAspectCrop") {
+            image = image.scaled(size, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
+        } else if (fillMode == "PreserveAspectFit") {
+            image = image.scaled(size, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+        } else {
+            image = image.scaled(size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
+        }
+
+        if (fillMode == "PreserveAspectCrop" || fillMode == "PreserveAspectFit") {
+            QImage canvas(size, QImage::Format_ARGB32);
+            canvas.fill(Qt::transparent);
+
+            QPainter painter(&canvas);
+            painter.drawImage((size.width() - image.width()) / 2, (size.height() - image.height()) / 2, image);
+            painter.end();
+
+            image = canvas;
+        }
+
+        const QString parent = QFileInfo(cache).absolutePath();
+        if (!QDir().mkpath(parent) || !image.save(cache)) {
+            qWarning() << "CachingImageManager::createCache: failed to save to" << cache;
+        }
+    });
+}
+
+QString CachingImageManager::sha256sum(const QString& path) {
+    QFile file(path);
+    if (!file.open(QIODevice::ReadOnly)) {
+        qWarning() << "CachingImageManager::sha256sum: failed to open" << path;
+        return "";
+    }
+
+    QCryptographicHash hash(QCryptographicHash::Sha256);
+    hash.addData(&file);
+    file.close();
+
+    return hash.result().toHex();
+}
+
+} // namespace caelestia
diff --git a/plugin/src/Caelestia/Internal/cachingimagemanager.hpp b/plugin/src/Caelestia/Internal/cachingimagemanager.hpp
new file mode 100644
index 0000000..f05ea34
--- /dev/null
+++ b/plugin/src/Caelestia/Internal/cachingimagemanager.hpp
@@ -0,0 +1,65 @@
+#pragma once
+
+#include <QtQuick/qquickitem.h>
+#include <qobject.h>
+#include <qqmlintegration.h>
+
+namespace caelestia {
+
+class CachingImageManager : public QObject {
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(QQuickItem* item READ item WRITE setItem NOTIFY itemChanged REQUIRED)
+    Q_PROPERTY(QUrl cacheDir READ cacheDir WRITE setCacheDir NOTIFY cacheDirChanged REQUIRED)
+
+    Q_PROPERTY(QString path READ path WRITE setPath NOTIFY pathChanged)
+    Q_PROPERTY(QUrl cachePath READ cachePath NOTIFY cachePathChanged)
+
+public:
+    explicit CachingImageManager(QObject* parent = nullptr)
+        : QObject(parent)
+        , m_item(nullptr) {}
+
+    [[nodiscard]] QQuickItem* item() const;
+    void setItem(QQuickItem* item);
+
+    [[nodiscard]] QUrl cacheDir() const;
+    void setCacheDir(const QUrl& cacheDir);
+
+    [[nodiscard]] QString path() const;
+    void setPath(const QString& path);
+
+    [[nodiscard]] QUrl cachePath() const;
+
+    Q_INVOKABLE void updateSource();
+    Q_INVOKABLE void updateSource(const QString& path);
+
+signals:
+    void itemChanged();
+    void cacheDirChanged();
+
+    void pathChanged();
+    void cachePathChanged();
+    void usingCacheChanged();
+
+private:
+    QString m_shaPath;
+
+    QQuickItem* m_item;
+    QUrl m_cacheDir;
+
+    QString m_path;
+    QUrl m_cachePath;
+
+    QMetaObject::Connection m_widthConn;
+    QMetaObject::Connection m_heightConn;
+
+    [[nodiscard]] qreal effectiveScale() const;
+    [[nodiscard]] QSize effectiveSize() const;
+
+    void createCache(const QString& path, const QString& cache, const QString& fillMode, const QSize& size) const;
+    [[nodiscard]] static QString sha256sum(const QString& path);
+};
+
+} // namespace caelestia
diff --git a/plugin/src/Caelestia/Internal/circularindicatormanager.cpp b/plugin/src/Caelestia/Internal/circularindicatormanager.cpp
new file mode 100644
index 0000000..ac0c428
--- /dev/null
+++ b/plugin/src/Caelestia/Internal/circularindicatormanager.cpp
@@ -0,0 +1,211 @@
+#include "circularindicatormanager.hpp"
+#include <qeasingcurve.h>
+#include <qpoint.h>
+
+namespace {
+
+namespace advance {
+
+constexpr qint32 TOTAL_CYCLES = 4;
+constexpr qint32 TOTAL_DURATION_IN_MS = 5400;
+constexpr qint32 DURATION_TO_EXPAND_IN_MS = 667;
+constexpr qint32 DURATION_TO_COLLAPSE_IN_MS = 667;
+constexpr qint32 DURATION_TO_COMPLETE_END_IN_MS = 333;
+constexpr qint32 TAIL_DEGREES_OFFSET = -20;
+constexpr qint32 EXTRA_DEGREES_PER_CYCLE = 250;
+constexpr qint32 CONSTANT_ROTATION_DEGREES = 1520;
+
+constexpr std::array<qint32, TOTAL_CYCLES> DELAY_TO_EXPAND_IN_MS = { 0, 1350, 2700, 4050 };
+constexpr std::array<qint32, TOTAL_CYCLES> DELAY_TO_COLLAPSE_IN_MS = { 667, 2017, 3367, 4717 };
+
+} // namespace advance
+
+namespace retreat {
+
+constexpr qint32 TOTAL_DURATION_IN_MS = 6000;
+constexpr qint32 DURATION_SPIN_IN_MS = 500;
+constexpr qint32 DURATION_GROW_ACTIVE_IN_MS = 3000;
+constexpr qint32 DURATION_SHRINK_ACTIVE_IN_MS = 3000;
+constexpr std::array DELAY_SPINS_IN_MS = { 0, 1500, 3000, 4500 };
+constexpr qint32 DELAY_GROW_ACTIVE_IN_MS = 0;
+constexpr qint32 DELAY_SHRINK_ACTIVE_IN_MS = 3000;
+constexpr qint32 DURATION_TO_COMPLETE_END_IN_MS = 500;
+
+// Constants for animation values.
+
+// The total degrees that a constant rotation goes by.
+constexpr qint32 CONSTANT_ROTATION_DEGREES = 1080;
+// Despite of the constant rotation, there are also 5 extra rotations the entire animation. The
+// total degrees that each extra rotation goes by.
+constexpr qint32 SPIN_ROTATION_DEGREES = 90;
+constexpr std::array<qreal, 2> END_FRACTION_RANGE = { 0.10, 0.87 };
+
+} // namespace retreat
+
+inline qreal getFractionInRange(qreal playtime, qreal start, qreal duration) {
+    const auto fraction = (playtime - start) / duration;
+    return std::clamp(fraction, 0.0, 1.0);
+}
+
+} // namespace
+
+namespace caelestia {
+
+CircularIndicatorManager::CircularIndicatorManager(QObject* parent)
+    : QObject(parent)
+    , m_type(IndeterminateAnimationType::Advance)
+    , m_curve(QEasingCurve(QEasingCurve::BezierSpline))
+    , m_progress(0)
+    , m_startFraction(0)
+    , m_endFraction(0)
+    , m_rotation(0)
+    , m_completeEndProgress(0) {
+    // Fast out slow in
+    m_curve.addCubicBezierSegment({ 0.4, 0.0 }, { 0.2, 1.0 }, { 1.0, 1.0 });
+}
+
+qreal CircularIndicatorManager::startFraction() const {
+    return m_startFraction;
+}
+
+qreal CircularIndicatorManager::endFraction() const {
+    return m_endFraction;
+}
+
+qreal CircularIndicatorManager::rotation() const {
+    return m_rotation;
+}
+
+qreal CircularIndicatorManager::progress() const {
+    return m_progress;
+}
+
+void CircularIndicatorManager::setProgress(qreal progress) {
+    update(progress);
+}
+
+qreal CircularIndicatorManager::duration() const {
+    if (m_type == IndeterminateAnimationType::Advance) {
+        return advance::TOTAL_DURATION_IN_MS;
+    } else {
+        return retreat::TOTAL_DURATION_IN_MS;
+    }
+}
+
+qreal CircularIndicatorManager::completeEndDuration() const {
+    if (m_type == IndeterminateAnimationType::Advance) {
+        return advance::DURATION_TO_COMPLETE_END_IN_MS;
+    } else {
+        return retreat::DURATION_TO_COMPLETE_END_IN_MS;
+    }
+}
+
+CircularIndicatorManager::IndeterminateAnimationType CircularIndicatorManager::indeterminateAnimationType() const {
+    return m_type;
+}
+
+void CircularIndicatorManager::setIndeterminateAnimationType(IndeterminateAnimationType t) {
+    if (m_type != t) {
+        m_type = t;
+        emit indeterminateAnimationTypeChanged();
+    }
+}
+
+qreal CircularIndicatorManager::completeEndProgress() const {
+    return m_completeEndProgress;
+}
+
+void CircularIndicatorManager::setCompleteEndProgress(qreal progress) {
+    if (qFuzzyCompare(m_completeEndProgress + 1.0, progress + 1.0)) {
+        return;
+    }
+
+    m_completeEndProgress = progress;
+    emit completeEndProgressChanged();
+
+    update(m_progress);
+}
+
+void CircularIndicatorManager::update(qreal progress) {
+    if (qFuzzyCompare(m_progress + 1.0, progress + 1.0)) {
+        return;
+    }
+
+    if (m_type == IndeterminateAnimationType::Advance) {
+        updateAdvance(progress);
+    } else {
+        updateRetreat(progress);
+    }
+
+    m_progress = progress;
+    emit progressChanged();
+}
+
+void CircularIndicatorManager::updateRetreat(qreal progress) {
+    using namespace retreat;
+    const auto playtime = progress * TOTAL_DURATION_IN_MS;
+
+    // Constant rotation.
+    const qreal constantRotation = CONSTANT_ROTATION_DEGREES * progress;
+    // Extra rotation for the faster spinning.
+    qreal spinRotation = 0;
+    for (const int spinDelay : DELAY_SPINS_IN_MS) {
+        spinRotation += m_curve.valueForProgress(getFractionInRange(playtime, spinDelay, DURATION_SPIN_IN_MS)) *
+                        SPIN_ROTATION_DEGREES;
+    }
+    m_rotation = constantRotation + spinRotation;
+    emit rotationChanged();
+
+    // Grow active indicator.
+    qreal fraction =
+        m_curve.valueForProgress(getFractionInRange(playtime, DELAY_GROW_ACTIVE_IN_MS, DURATION_GROW_ACTIVE_IN_MS));
+    fraction -=
+        m_curve.valueForProgress(getFractionInRange(playtime, DELAY_SHRINK_ACTIVE_IN_MS, DURATION_SHRINK_ACTIVE_IN_MS));
+
+    if (!qFuzzyIsNull(m_startFraction)) {
+        m_startFraction = 0.0;
+        emit startFractionChanged();
+    }
+    const auto oldEndFrac = m_endFraction;
+    m_endFraction = std::lerp(END_FRACTION_RANGE[0], END_FRACTION_RANGE[1], fraction);
+
+    // Completing animation.
+    if (m_completeEndProgress > 0) {
+        m_endFraction *= 1 - m_completeEndProgress;
+    }
+
+    if (!qFuzzyCompare(m_endFraction + 1.0, oldEndFrac + 1.0)) {
+        emit endFractionChanged();
+    }
+}
+
+void CircularIndicatorManager::updateAdvance(qreal progress) {
+    using namespace advance;
+    const auto playtime = progress * TOTAL_DURATION_IN_MS;
+
+    // Adds constant rotation to segment positions.
+    m_startFraction = CONSTANT_ROTATION_DEGREES * progress + TAIL_DEGREES_OFFSET;
+    m_endFraction = CONSTANT_ROTATION_DEGREES * progress;
+
+    // Adds cycle specific rotation to segment positions.
+    for (size_t cycleIndex = 0; cycleIndex < TOTAL_CYCLES; ++cycleIndex) {
+        // While expanding.
+        qreal fraction = getFractionInRange(playtime, DELAY_TO_EXPAND_IN_MS[cycleIndex], DURATION_TO_EXPAND_IN_MS);
+        m_endFraction += m_curve.valueForProgress(fraction) * EXTRA_DEGREES_PER_CYCLE;
+
+        // While collapsing.
+        fraction = getFractionInRange(playtime, DELAY_TO_COLLAPSE_IN_MS[cycleIndex], DURATION_TO_COLLAPSE_IN_MS);
+        m_startFraction += m_curve.valueForProgress(fraction) * EXTRA_DEGREES_PER_CYCLE;
+    }
+
+    // Closes the gap between head and tail for complete end.
+    m_startFraction += (m_endFraction - m_startFraction) * m_completeEndProgress;
+
+    m_startFraction /= 360.0;
+    m_endFraction /= 360.0;
+
+    emit startFractionChanged();
+    emit endFractionChanged();
+}
+
+} // namespace caelestia
diff --git a/plugin/src/Caelestia/Internal/circularindicatormanager.hpp b/plugin/src/Caelestia/Internal/circularindicatormanager.hpp
new file mode 100644
index 0000000..71da93d
--- /dev/null
+++ b/plugin/src/Caelestia/Internal/circularindicatormanager.hpp
@@ -0,0 +1,72 @@
+#pragma once
+
+#include <qeasingcurve.h>
+#include <qobject.h>
+#include <qqmlintegration.h>
+
+namespace caelestia {
+
+class CircularIndicatorManager : public QObject {
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(qreal startFraction READ startFraction NOTIFY startFractionChanged)
+    Q_PROPERTY(qreal endFraction READ endFraction NOTIFY endFractionChanged)
+    Q_PROPERTY(qreal rotation READ rotation NOTIFY rotationChanged)
+    Q_PROPERTY(qreal progress READ progress WRITE setProgress NOTIFY progressChanged)
+    Q_PROPERTY(qreal completeEndProgress READ completeEndProgress WRITE setCompleteEndProgress NOTIFY
+            completeEndProgressChanged)
+    Q_PROPERTY(qreal duration READ duration NOTIFY indeterminateAnimationTypeChanged)
+    Q_PROPERTY(qreal completeEndDuration READ completeEndDuration NOTIFY indeterminateAnimationTypeChanged)
+    Q_PROPERTY(IndeterminateAnimationType indeterminateAnimationType READ indeterminateAnimationType WRITE
+            setIndeterminateAnimationType NOTIFY indeterminateAnimationTypeChanged)
+
+public:
+    explicit CircularIndicatorManager(QObject* parent = nullptr);
+
+    enum IndeterminateAnimationType {
+        Advance = 0,
+        Retreat
+    };
+    Q_ENUM(IndeterminateAnimationType)
+
+    [[nodiscard]] qreal startFraction() const;
+    [[nodiscard]] qreal endFraction() const;
+    [[nodiscard]] qreal rotation() const;
+
+    [[nodiscard]] qreal progress() const;
+    void setProgress(qreal progress);
+
+    [[nodiscard]] qreal completeEndProgress() const;
+    void setCompleteEndProgress(qreal progress);
+
+    [[nodiscard]] qreal duration() const;
+    [[nodiscard]] qreal completeEndDuration() const;
+
+    [[nodiscard]] IndeterminateAnimationType indeterminateAnimationType() const;
+    void setIndeterminateAnimationType(IndeterminateAnimationType t);
+
+signals:
+    void startFractionChanged();
+    void endFractionChanged();
+    void rotationChanged();
+    void progressChanged();
+    void completeEndProgressChanged();
+    void indeterminateAnimationTypeChanged();
+
+private:
+    IndeterminateAnimationType m_type;
+    QEasingCurve m_curve;
+
+    qreal m_progress;
+    qreal m_startFraction;
+    qreal m_endFraction;
+    qreal m_rotation;
+    qreal m_completeEndProgress;
+
+    void update(qreal progress);
+    void updateAdvance(qreal progress);
+    void updateRetreat(qreal progress);
+};
+
+} // namespace caelestia